Re: Ineradicable EFI boot entry

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From: Michael <[email protected]>
To: [email protected]
Reply-To: [email protected]
Subject: Re: [gentoo-user] Ineradicable EFI boot entry
Date: Mon, 15 Jun 2026 09:38:38 +0100
Message-ID: <[email protected]>
In-Reply-To: <[email protected]>
MIME-Version: 1.0

On Monday, 15 June 2026 08:46:22 British Summer Time Peter Humphrey 
wrote:
> On Monday, 15 June 2026 08:32:23 British Summer Time Peter Humphrey 
wrote:
> > Yes, I've done all that, as I said before. It has no effect. None.y
> 
> Oops! Sorry; I wasn't doing it right. All fixed now.
> 
> Thanks Michael.

OK, good result.  :-)

I should have mentioned tread carefully in this directory, because you 
could end up with a MoBo failing to POST!  Some of the variables in 
there are meant to be immutable, as lsattr will show.  The boot list 
entries are not immutable, but I would only touch these with the 
efibootmgr command just to be safe.

I recall efivars being mounted read-only a few years ago, to prevent 
users and scripts running loose in it and causing bricked systems.  Then 
it was decided to set this fs as immutable on drivers stored in it, but 
leave boot list entries as non-immutable so they can be altered as 
desired by the user.

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